Walker,John R, & Miller, J. E. (2017). Supervision in the hospitality industry (Eighth edition.). Wiley.
Citazione stile Chigago Style (17a edizione)Walker,John R, e Jack E. Miller. Supervision in the Hospitality Industry. Eighth edition. Hoboken, New Jersey: Wiley, 2017.
Citatione MLA (9a ed.)Walker,John R, e Jack E. Miller. Supervision in the Hospitality Industry. Eighth edition. Wiley, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.